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Worksheets7th Grade Final Review
Total questions: 93
Worksheet time: 47mins
Which is the correct order of the scientific method?
A) ask questions, test hypothesis, analyze results, carry out farther inquiry, draw conclusion, hypothesis, communicate
B) communicate, carry out inquiry, draw conclusion, analyze results, hypothesis, test hypothesis, ask questions
C) carry out inquiry, communicate, draw conclusions, analyze, test hypothesis, hypothesis, ask questions
D) ask questions, hypothesis, test hypothesis, analyze results, draw conclusions, communicate, carry out inquiry
Safety glasses must be worn when using:
heat
glassware
chemicals
all of the above
Never taste chemicals and never touch chemicals with your hands.
True
False
An accident has occurred in the lab. The first thing you should do is clean up the mess.
True
False
It is important to follow all safety procedures in the lab in order to:
prevent accidents
prevent damage to the lab equipment
avoid injury to others
all of the above
You find a bottle of liquid on the lab shelf that is missing a label. You should:
give the bottle to your teacher
pour contents down the drain
try to find another bottle like it and assume contents are the same
try to identify the liquid by tasting a drop or smelling it
What is an dependent variable?
what you observe
what you change
what stays the same
Food may be brought into the lab if:
if it is kept in your bag
you do not eat it until your lab is finished
it does not produce crumbs or waste
none of the above
Tongs should be used to safely pick up hot glassware.
True
False
How do you find the average (mean) of multiple trials?
add them together and divide by # of trials
find the most common number
subtract the least from the greatest number
add them together
What is an independent variable?
what you observe
what you change
what stays the same
When working in the science lab:
materials can be assumed to be harmless
washing your hands with soap and water
unsupervised experiments are allowed
all of the above
It is okay to pick up broken glass.
True
False
How can you test the hardness of a rock?
scratching on a streak plate
shining a light on the rock
scratching it with a penny or nail
observing it through a magnifying lens
How do you test the color of the rock?
scratching on a streak plate
shining a light on the rock
scratching it with a penny or nail
observing it through a magnifying lens
How do you determine the color of the rock in powder form? (what is left behind when scratched)
scratching on a streak plate
shining a light on the rock
scratching it with a penny or nail
observing it through a magnifying lens
How do you identify an igneous rock?
interlocking crystals with no layering or color banding, may contain small holes
formed of particles like sand, pebbles, or clay; may form layers
formed by heat/pressure, interlocking crystals texture showing layers of alternating dark and light bands
How do you identify metamorphic rock?
interlocking crystals with no layering or color banding, may contain small holes
formed of particles like sand, pebbles, or clay; may form layers
formed by heat/pressure, interlocking crystals texture showing layers of alternating dark and light bands
How do you identify sedimentary rock?
interlocking crystals with no layering or color banding, may contain small holes
formed of particles like sand, pebbles, or clay; may form layers
formed by heat/pressure, interlocking crystals texture showing layers of alternating dark and light bands
What has to happen to form sediments?
weather and erosion
heat and pressure
compaction and cementation
cooling of the rock
What has to happen to form sedimentary rock?
weather and erosion
heat and pressure
compaction and cementation
cooling of the rock
What has to happen to form metamorphic rock?
weather and erosion
heat and pressure
compaction and cementation
cooling of the rock
What has to happen to form igneous rock?
weathering and erosion
heat and pressure
compaction and cementation
cooling of the rock
What is the biosphere?
all living things
all water on earth
all solid rock and minerals on earth
mixture of gases forming a layer around earth
What is the atmosphere?
all living things on earth
all water on earth
all solid rock and minerals on earth
mixture of gases forming a layer around earth
What is the geosphere?
all living things
all water on earth
all solid rock and minerals on earth
mixture of gases forming a layer around earth
What is the hydrosphere?
all living things
all water on earth
all solid rock and minerals on earth
mixture of gases forming a layer around earth
What is precipitation?
moisture that falls from the clouds to earth’s surface
plants releasing water vapor through the leaves
liquid rising to clouds and changing into a gas
gas changing to a liquid by water drops forming a cloud
What is condensation?
moisture that falls from the clouds to earth’s surface
plants releasing water vapor through the leaves
liquid rising to clouds and changing into a gas
gas changing to a liquid by water drops forming a cloud
What is transpiration?
moisture that falls from the clouds to earth’s surface
plants releasing water vapor through the leaves
liquid rising to clouds and changing into a gas
gas changing to a liquid by water drops forming a cloud
What is evaporation?
moisture that falls from the clouds to earth’s surface
plants releasing water vapor through the leaves
liquid rising to clouds and changing into a gas
gas changing to a liquid by water drops forming a cloud
All of the earth’s systems can work together in every cycle.
True
False
What is a light-year?
distance of the moon from earth
distance light travels from the sun to neptune
distance light travels in a year
distance light travels from the sun to earth
Why is the same side of the Moon always visible from earth?
moon does not rotate
moon does not revolve around earth
moon makes exactly one rotation for each revolution around earth
moons rotation axis is not tilted
What determines whether a lunar eclipse will be a partial or full eclipse?
only the portion of the moon that passes through the penumbra is the full eclipse
tilt of the earth on its axis determines the extend of the eclipse
portion of the moon that passes through the earth's umbra determines whether an eclipse will be partial
each pass of the moon around earth determines how the next eclipse will be seen
What event is shown in the figure below?
lunar eclipse
solar eclipse
tide formation
sun spots
How many times a day does the water rise and fall to produce tides?
once
twice
three times
four times
Which statement best describes the phases of the moon?
during waxing and waning phase, the amount of light received by the sun changes
during the waxing phase, less of the moon's near side is lit each night
during the waning phase, less of the moon's near side is lit each night
during both waxing and waning, the moon is not visible to people from earth
What are the large dark areas seen on the surface of the moon?
craters
caleras
highlands
maria
What feature of the moon was formed from objects impacting the surface?
maria
rivers
highlands
craters
Which is a layer of the earth?
crust
lithosphere
mantle
all of the above
How many major tectonic plates for the earth have?
5
6
8
10
How do tectonic plates move?
from the wind
they are alive
they are floating
they are heavy
The movement of tectonic plates can cause...
tornadoes
hurricanes
blizzards
earthquakes
Which type of boundary causes a lot of earthquakes?
convergent
divergent
transform
Which type of boundary causes mountains/volcanoes?
convergent
divergent
transform
Which type of boundary causes seafloor spreading?
convergent
divergent
transform
Plates move around very quickly.
True
False
What causes the different seasons on Earth?
distance from the sun
earth's tilt on its axis
shape of the earth's orbit
changes in the sun's brightness
What is the main source of energy that drives the water cycle?
wind
ocean tides
the sun
earth's rotation
What is the process of rocks being broken down into smaller pieces?
deposition
erosion
weathering
melting
How can you test the hardness of a rock?
scratching on a streak plate
shining a light on the rock
scratching it with a penny or nail
observing it through a magnifying lens
How do you test the color of the rock?
scratching on a streak plate
shining a light on the rock
scratching it with a penny or nail
observing it through a magnifying lens
How do you determine the color of the rock in powder form? (what is left behind when scratched)
scratching on a streak plate
shining a light on the rock
scratching it with a penny or nail
observing it through a magnifying lens
What is the hardest rock/mineral on the hardness scale?
Quartz
Marble
Diamond
Slate
How do you identify an igneous rock?
interlocking crystals with no layering or color banding, may contain small holes
formed of particles like sand, pebbles, or clay; may form layers
formed from heat/pressure, interlocking crystal texture showing layers of alternating dark and light bands
How do you identify metamorphic rock?
interlocking crystals with no layering or color banding, may contain small holes
formed of particles like sand, pebbles, or clay; may form layers
formed from heat/pressure, interlocking crystal texture showing layers of alternating dark and light bands
How do you identify sedimentary rock?
interlocking crystals with no layering or color banding, may contain small holes
formed of particles like sand, pebbles or clay; may form layers
formed from heat/pressure, interlocking crystal texture showing layers of alternating dark and light bands
What has to happen to form sediments?
weather and erosion
heat and pressure
compaction and cementation
cooling of the rock
What has to happen to form sedimentary rock?
weather and erosion
heat and pressure
compaction and cementation
cooling of the rock
What has to happen to form metamorphic rock?
weathering and erosion
heat and pressure
compaction and cementation
cooling of the rock
What has to happen to form igneous rock?
weathering and erosion
heat and pressure
compaction and cementation
cooling of the rock
What is the biosphere?
all living things
all water on earth
all solid rock and minerals on earth
mixture of gases forming a layer around earth
What is the atmosphere?
all living things
all water on earth
all solid rock and minerals on earth
mixture of gases forming a layer around earth
What is the geosphere?
all living things
all water on earth
all solid rock and minerals on earth
mixture of gases forming a layer around earth
What is the hydrosphere?
all living things
all water on earth
all solid rock and minerals on earth
mixture of gases forming a layer around earth
What is precipitation?
moisture that falls from clouds to earth's surface
plants releasing water vapor through the leaves
liquid rising to clouds and changing into a gas
gas changing to a liquid by water drops forming a cloud
What is condensation?
moisture that falls from clouds to earth's surface
plants releasing water vapor through the leaves
liquid rising to clouds and changing into a gas
gas changing to a liquid by water drops forming a cloud
What is transpiration?
moisture that falls from clouds to earth's surface
plants releasing water vapor through the leaves
liquid rising to clouds and changing into a gas
gas changing to a liquid by water drops forming a cloud
What is evaporation?
moisture that fall from clouds to earth's surface
plants releasing water vapor through the leaves
liquid rising to clouds and changing into a gas
gas changing to a liquid by water drops forming a cloud
All of the earth's systems can work together in every cycle.
True
False
An object will resist a change in motion due to:
Gravity
Inertia
Friction
Velocity
Newton's Second Law Formula is:
F = m x a
F = m / a
F = a / m
F = m + a
Newton's Third Law states:
Every action has an equal and opposite reaction
Objects stay in motion unless acted on by a force
Gravity pulls everything down
Balanced forces move an object around
A book sitting on a table demonstrates:
Newton's First Law
Newton's Second Law
Balanced forces
Unbalanced forces
Friction:
always slows motion
speeds up motion
has no effect on motion
changes mass
When a ball is kicked and accelerates, which law is shown?
First Law
Second Law
Third Law
Law of Friction
Which law is shown when you push backward on the ground and the skateboard moves forward?
Newton's 1st law
Newton's 2nd law
Newton's 3rd Law
Gravity
A car slows due to brakes. The unbalanced force acting on it is:
gravity
friction
inertia
mass
Which is an example of unbalanced forces?
picture hanging on a wall
stationary book
box sitting on the floor
rocket launching
When two equal forces act in opposite directions on an object:
object accelerates
object moves faster
object does not move
object slows down
A sky diver falling with air resistance is an example of:
balanced forces
unbalanced forces
constant velocity
Newton's 3rd law
The total force acting on an object is called:
gravity
net force
friction
mass
A rocket lifting off the ground demonstrates which law?
First law
Second Law
Third Law
Law of Gravity
If two people push a box in opposite directions with equal force, the net force is:
zero
double
negative
faster
Speed is calculated using the formula:
distance x time
distance / time
time / distance
time x distance
A car travels 120 meters in 10 seconds. What is its speed?
10 m/s
12 m/s
15 m/s
20 m/s
If an object speeds up, it is experiencing:
acceleration
balanced force
constant speed
inertia
Velocity differs from speed because it includes:
time
direction
distance
mass
A bike goes from 0 m/s to 10 m/s in 2 seconds. Its acceleration is:
2 m/s2
5 m/s2
10 m/s2
20 m/s2
A car travels north at 20 m/s. Another car travels south 20 m/s. Which statement is correct?
they have the same velocity
they have the same speed but different velocity
they have different speeds
they have zero velocity
A ball rolls at a steady speed across the floor. Its acceleration is:
positive
negative
zero
changing
A car moves 100 meters in 5 seconds. Its speed is:
10 m/s
15 m/s
20 m/s
25 m/s
